//ref:https://blog.csdn.net/tyler_download/article/details/52468520
void foo_print(char* a, int len);

int  bar_func(int a, int b) {//函数传入参数的时候先压入最后一个参数，第一个参数是在最后压入
    if (a > b) {
       foo_print("the 1st one\n", 13);
    } else {
       foo_print("the 2nd one\n", 13);
    }

    return 0;
}
